Videos
(a)
To identify: Whether the object is moving in positive or negative direction for segment A to B.
(a)
Answer to Problem 56P
The object is moving in the negative direction.
Explanation of Solution
Introduction:
Consider the given graph as shown below.
For the segment A to B, object is moving constantly and then distance decreases rapidly with time.
In the graph segment A-B, the object is moving in a negative direction as the slope of the line segment is decreasing over time.
Conclusion:
The object would be moving in the negative direction.
(b)
To identify: Whether the object is speeding up or slowing down in graph for segment A to B.
(b)
Answer to Problem 56P
The object is speeding up.
Explanation of Solution
Introduction:
Consider the given graph as shown below.
For the segment A to B, object is moving constantly and then distance decreases rapidly with time.
In the segment A to B, the object is moving from a less steep position to steeper one, this suggests that the object is speeding up.
Conclusion:
The object is speeding up.
(c)
To identify: Whether the acceleration of an object is positive or negative for segment A to B.
(c)
Answer to Problem 56P
The acceleration of the object is negative.
Explanation of Solution
Introduction:
Consider the given graph as shown below.
For the segment A to B, object is moving constantly and then distance decreases rapidly with time.
During the interval of A to B, the graph is going concave downward i.e. slope is going more negative. Thus, the acceleration is negative.
Conclusion:
The acceleration of the object is negative.
(d)
To identify: Whether the object is moving in positive or negative direction for segment D to E.
(d)
Answer to Problem 56P
The object would be moving in a positive direction.
Explanation of Solution
Introduction:
Consider the given graph as shown below.
For the segment A to B, object is moving constantly and then distance decreases rapidly with time.
For the segment D to E, object’s distance increases with time then the objects moves faster.
In the graph segment D-E, the object is moving in a positive direction as the slope of the line segment is increasing.
Conclusion:
The object would be moving in a positive direction.
(e)
To identify: Whether the object is speeding up or slowing down for segment D to E.
(e)
Answer to Problem 56P
The object is speeding up.
Explanation of Solution
Introduction:
Consider the given graph as shown below.
For the segment A to B, object is moving constantly and then distance decreases rapidly with time.
For the segment D to E, object’s distance increases with time then the objects moves faster.
The object is moving on the graph from a less steep position to steeper that is slope is increasing with time.This suggests that the object is speeding up.
Conclusion:
The object is speeding up.
(f)
To identify: Whether the acceleration of an object is positive or negative in the graph segment D to E.
(f)
Answer to Problem 56P
The object will accelerate.
Explanation of Solution
Introduction:
Consider the given graph as shown below.
For the segment A to B, object is moving constantly and then distance decreases rapidly with time.For the segment D to E, object’s distance increases with time then the objects moves faster.
During the interval D to E, the graph is going concave upward i.e. slope is going more positive. Thus, the acceleration is positive.
Conclusion:
The object will accelerate.
(g)
To identify: Whether the object moving in the positive or negative direction in the graph segment C to D.
(g)
Answer to Problem 56P
The object is not moving in either direction. The object is at rest.
Explanation of Solution
Introduction:
Consider the given graph as shown below.
For the segment A to B, object is moving constantly and then distance decreases rapidly with time.
For the segment C to D, the object’s distance is constant with time then object remains stationary.
After reading the graph segment C-D, the object is not moving in either direction. Thus, the distance graph is linearly constant.
Conclusion:
The distance between duration of graph segment C-D is constant. Thus, the object will remain at rest.
(h)
To identify: Whether the object speeding up or slowing down in graph segment C to D.
(h)
Answer to Problem 56P
The object is not moving in either direction. The object is at rest.
Explanation of Solution
Introduction:
Consider the given graph as shown below.
For the segment A to B, object is moving constantly and then distance decreases rapidly with time.
For the segment C to D, the object’s distance is constant with time then object remains stationary.
After reading the graph segment C-D, the object is not moving in either direction. Thus, the velocity of the object is zero.
Conclusion:
The velocity of the object is zero that is the object is at rest.
(i)
To identify: Whether the acceleration of the object positive or negative in the graph segment C to D.
(i)
Answer to Problem 56P
The object is not moving in either direction. So, the acceleration is zero.
Explanation of Solution
Introduction:
Consider the given graph as shown below.
For the segment A to B, object is moving constantly and then distance decreases rapidly with time.For the segment C to D, the object’s distance is constant with time then object remains stationary.
After reading the graph segment C-D, the object is not moving in either direction. Thus, the acceleration is zero.
Conclusion:
The object is not moving in either direction. So, the acceleration is zero.
Chapter 2 Solutions
Physics: Principles with Applications
Additional Science Textbook Solutions
Introductory Chemistry (6th Edition)
Campbell Biology: Concepts & Connections (9th Edition)
Microbiology: An Introduction
Applications and Investigations in Earth Science (9th Edition)
Microbiology: An Introduction
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
- No chatgpt pls will upvotearrow_forward1.62 On a training flight, a Figure P1.62 student pilot flies from Lincoln, Nebraska, to Clarinda, Iowa, next to St. Joseph, Missouri, and then to Manhattan, Kansas (Fig. P1.62). The directions are shown relative to north: 0° is north, 90° is east, 180° is south, and 270° is west. Use the method of components to find (a) the distance she has to fly from Manhattan to get back to Lincoln, and (b) the direction (relative to north) she must fly to get there. Illustrate your solutions with a vector diagram. IOWA 147 km Lincoln 85° Clarinda 106 km 167° St. Joseph NEBRASKA Manhattan 166 km 235° S KANSAS MISSOURIarrow_forwardPlz no chatgpt pls will upvotearrow_forward
- 3.19 • Win the Prize. In a carnival booth, you can win a stuffed gi- raffe if you toss a quarter into a small dish. The dish is on a shelf above the point where the quarter leaves your hand and is a horizontal dis- tance of 2.1 m from this point (Fig. E3.19). If you toss the coin with a velocity of 6.4 m/s at an angle of 60° above the horizontal, the coin will land in the dish. Ignore air resistance. (a) What is the height of the shelf above the point where the quarter leaves your hand? (b) What is the vertical component of the velocity of the quarter just before it lands in the dish? Figure E3.19 6.4 m/s 2.1arrow_forwardCan someone help me answer this thank you.arrow_forward1.21 A postal employee drives a delivery truck along the route shown in Fig. E1.21. Determine the magnitude and direction of the resultant displacement by drawing a scale diagram. (See also Exercise 1.28 for a different approach.) Figure E1.21 START 2.6 km 4.0 km 3.1 km STOParrow_forward
- help because i am so lost and it should look something like the picturearrow_forward3.31 A Ferris wheel with radius Figure E3.31 14.0 m is turning about a horizontal axis through its center (Fig. E3.31). The linear speed of a passenger on the rim is constant and equal to 6.00 m/s. What are the magnitude and direction of the passenger's acceleration as she passes through (a) the lowest point in her circular motion and (b) the high- est point in her circular motion? (c) How much time does it take the Ferris wheel to make one revolution?arrow_forward1.56 ⚫. Three horizontal ropes pull on a large stone stuck in the ground, producing the vector forces A, B, and C shown in Fig. P1.56. Find the magnitude and direction of a fourth force on the stone that will make the vector sum of the four forces zero. Figure P1.56 B(80.0 N) 30.0 A (100.0 N) 53.0° C (40.0 N) 30.0°arrow_forward
- 1.39 Given two vectors A = -2.00 +3.00 +4.00 and B=3.00 +1.00 -3.00k. (a) find the magnitude of each vector; (b) use unit vectors to write an expression for the vector difference A - B; and (c) find the magnitude of the vector difference A - B. Is this the same as the magnitude of B - Ä? Explain.arrow_forward5. The radius of a circle is 5.5 cm. (a) What is the circumference in meters? (b) What is its area in square meters? 6. Using the generic triangle below, solve the following: 0 = 55 and c = 32 m, solve for a and b. a = 250 m and b = 180 m, solve for the angle and c. b=104 cm and c = 65 cm, solve for a and the angle b a 7. Consider the figure below representing the Temperature (T in degrees Celsius) as a function of time t (in seconds) 4 12 20 (a) What is the area under the curve in the figure below? (b) The area under the graph can be calculated using integrals or derivatives? (c) During what interval is the derivative of temperature with respect to time equal to zero?arrow_forwardPart 3: Symbolic Algebra Often problems in science and engineering are done with variables only. Don't let the different letters confuse you. Manipulate them algebraically as though they were numbers. 1. Solve 3x-7= x + 3 for x 2x-1 2. Solve- for x 2+2 In questions 3-11 solve for the required symbol/letter 3. v2 +2a(s-80), a = = 4. B= Ho I 2π r 5. K = kz² 6.xm= MAL ,d= d 7.T, 2 = 8.F=Gm 9. mgh=mv² 10.qV = mu² 80 12. Suppose that the height in meters of a thrown ball after t seconds is given by h =6+4t-t². Complete the square to find the highest point and the time when this happens. 13. Solve by completing the square c₁t² + cat + 3 = 0. 14. Solve for the time t in the following expression = 0 + vot+at²arrow_forward
College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
University Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSON
Introduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press
Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Lecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-Wesley
College Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON